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Re: [RFH] [tree-ssa] disabling lowering for &a->b causes ICE

From: Diego Novillo <dnovillo at redhat dot com>
To: Andrew Pinski <pinskia at physics dot uc dot edu>
Cc: "gcc at gcc dot gnu dot org List" <gcc at gcc dot gnu dot org>, Jason Merrill <jason at redhat dot com>
Date: Sun, 15 Feb 2004 15:06:48 -0500
Subject: Re: [RFH] [tree-ssa] disabling lowering for &a->b causes ICE
Organization: Red Hat Canada
References: <7FF37753-5F8D-11D8-AC2C-000393A6D2F2@physics.uc.edu> <1076862451.3252.249.camel@localhost.localdomain>

On Sun, 2004-02-15 at 11:29, Diego Novillo wrote:
> On Sun, 2004-02-15 at 03:03, Andrew Pinski wrote:
> > When I disable the lowering of &a->b in the C or C++ front-ends, I get 
> > an
> > ICE because for some reason a SSA_NAME made it through to expand.  This
> > patch should be used to solve PR 14029 when this is ICE is fixed.
> > 
> The problem is that we put 'b' into SSA form in the first place.  &b->i
> is/should be a gimple value, not a variable reference.
> 
> Jason, does the expression &b->i imply a dereference of pointer b?
> 
Never mind.  &b->i is a use of 'b'.  We do need the operand.  The
out-of-ssa pass needs to consider 'b'.


Diego.

References:
- [RFH] [tree-ssa] disabling lowering for &a->b causes ICE
  - From: Andrew Pinski
- Re: [RFH] [tree-ssa] disabling lowering for &a->b causes ICE
  - From: Diego Novillo

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